ABB i-bus
®
KNX
Parameters
AC/S 1.x.1 | 2CDC508198D0211 Rev. A 343
Min. supply temperature
The supply setpoint temperature output by the module is limited using this parameter. This is a
safety function that ensures a supply setpoint temperature too low for the cooling system is not
output under any circumstances. For example, the supply setpoint temperature for cooling ceiling
can be limited to minimum 14 °C.
Switch off if no room demand
With this function the module monitors the room control values and automatically switches on and off the
cooling distribution circuit controller connected accordingly.
It is a prerequisite for this function that all control values from the room valves in the cooling distribution
circuit are available and connected to the ASM input socket. There must therefore not be any conventional
thermostats in the cooling distribution circuit.
This function is affected by the Enable cooling circuit control based on ASM input socket function. If both
functions are activated, the Enable cooling circuit control based on ASM input socket has a higher priority.
Selection of Yes option:
Dependent parameter(s)
Switch on if the room demand is higher than
The module sends a switch-on command to the cooling distribution circuit controller if the highest
room control value present on the ASM input socket exceeds this value.
Switch off if the room demand is equal to or less than
The module sends a switch-off command to the cooling distribution circuit controller if the highest
room control value present on the ASM input socket is the same as or less than this value.
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